R4ZZ bearing
The R4ZZ is a inch-size (R-series) ball bearing with a 1/4 in bore, 0.625 in outside diameter and 0.196 in width, metal shielded on both sides.
Size & specs
| Type | Inch (R-series) ball bearing |
|---|---|
| Bore (ID) | 1/4 in (6.35 mm) |
| Outside diameter (OD) | 0.625 in (15.88 mm) |
| Width | 0.196 in (4.98 mm) |
| Seals / shields | ZZ: metal shielded on both sides |
Where to buy
Other versions
Questions
What size is a R4ZZ bearing?
1/4 × 0.625 × 0.196 in (bore × outside diameter × width).
What does ZZ mean?
ZZ means metal shields on both sides. Shields have less drag than rubber seals and suit higher speeds, but they don't keep out water or fine dust as well.